Senior Software Engineer
I'm Adrian Wojciech Wojtyczka — a Senior .NET Developer with 14+ years of experience crafting scalable web applications, microservices, and high-performance solutions for businesses across Italy, Switzerland, and Europe.
Combining hands-on development expertise with technical leadership to build solutions that scale.
With over 14 years in professional software development, I specialize in building enterprise web applications, microservices architectures, and performance-critical systems using the Microsoft technology stack.
My track record includes optimizing overall system performance with improvements up to 99.8%, improving SQL queries execution, and successfully migrating monolithic applications to scalable microservices architectures. I consistently deliver measurable improvements that directly impact business operations.
Beyond code, I bring value through technical mentorship, establishing coding standards, and architecting solutions that balance business needs with technical excellence. I actively leverage AI tools like Claude AI for code analysis, code review, and quality improvement — integrating them into my daily workflow to deliver more robust and maintainable solutions. I've delivered over 20 projects ranging from desktop utilities to multi-tenant SaaS platforms serving thousands of users.
Based in Italy and currently working in Switzerland, I'm open to opportunities in Switzerland and across Europe.
From energy contract platforms to emergency management systems — enterprise software at every scale.
A selection of notable projects demonstrating expertise across energy, healthcare, emergency management, and data engineering.
Enterprise web application for gas and power contract management, serving multiple business customers. Achieved 99.5% file import optimization and optimized several critical SQL queries. Established company-wide coding standards and architectural patterns.
Mission-critical platform for real-time emergency response, acquired by Rega. Contributed to monolith-to-microservices migration, designed enterprise Event Bus for inter-service communication, and built Power BI dashboards for emergency response KPIs.
OMS for fashion industry managing orders across multiple marketplaces. Achieved 40x stock synchronization speedup, integrated Channel Advisor APIs, and connected multiple warehouse systems via REST, SOAP, and FTP file exchange protocols.
End-to-end solution for physiotherapy clinics managing 5,000+ monthly appointments, with invoicing, employee and room management. Analytics reports for performance tracking and CRM integration for automated marketing campaigns.
Modernizing a legacy Flash application with Blazor Hybrid for web and desktop deployment. Offline-first architecture for reliable classroom use, with interactive teaching tools including virtual whiteboard and content annotation.
Web application running on kiosk-mode tablets alongside key cabinets enabling the hospital staff to retrieve emergency keys. Supports remote key release on behalf of requesting users and full audit logging.
Desktop application parsing XML e-invoices into structured Excel datasets. Comprehensive Power BI dashboards enabling multi-dimensional financial analysis for cash flow, vendor insights, and company performance.
Desktop application integrating with the Italian government PagoPA payment system via REST APIs. Manages payment request creation and PDF notice generation, enabling citizens to pay administrative fees for automotive practices.
Sophisticated web scraping solution building a comprehensive database of Italian IT companies. Implemented Damerau-Levenshtein algorithm for intelligent duplicate detection achieving 99%+ accuracy, with automatic CAPTCHA solving.
I'm open to opportunities in Switzerland and across Europe. Feel free to reach out — I'd be happy to connect.